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DC Field | Value | Language |
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dc.citation.endPage | 12581 | - |
dc.citation.number | 25 | - |
dc.citation.startPage | 12574 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.citation.volume | 22 | - |
dc.contributor.author | Park, Jang-Hoon | - |
dc.contributor.author | Cho, Ju-Hyun | - |
dc.contributor.author | Kim, Sung-Bae | - |
dc.contributor.author | Kim, Woo-Sung | - |
dc.contributor.author | Lee, Sun-Young | - |
dc.contributor.author | Lee, Sang-Young | - |
dc.date.accessioned | 2023-12-22T05:06:49Z | - |
dc.date.available | 2023-12-22T05:06:49Z | - |
dc.date.created | 2014-09-17 | - |
dc.date.issued | 2012-07 | - |
dc.description.abstract | A new and facile approach for the surface modification of high-voltage LiNi 1/3Co 1/3Mn 1/3O 2 cathode active materials is demonstrated. This strategy is based on polyimide (PI) gel polymer electrolyte (GPE)-directed nanoscale wrapping. The PI coating layer successfully wraps a large area of the LiNi 1/3Co 1/3Mn 1/3O 2 surface via thermal imidization of (pyromellitic dianhydride/oxydianiline) polyamic acid. Salient features of the PI wrapping layer are the highly continuous surface coverage with nanometre thickness (∼10 nm) and the facile ion transport through the nanoscale layer. Based on a sound understanding of the nanoarchitectured PI wrapping layer, its influence on the cell performance and thermal stability of high-voltage LiNi 1/3Co 1/3Mn 1/3O 2 is investigated as a function of charge cut-off voltage (herein, 4.6 and 4.8 V). The anomalous PI wrapping layer substantially improves the high-voltage cycling performance and alleviates the interfacial exothermic reaction between delithiated LiNi 1/3Co 1/3Mn 1/3O 2 and liquid electrolyte. These results demonstrate that the PI wrapping layer effectively prevents the direct exposure of the LiNi 1/3Co 1/3Mn 1/3O 2 surface to liquid electrolytes that are highly vulnerable to electrochemical decomposition at high charge voltage conditions, thus behaving as a novel ion-conductive protection skin that mitigates the unwanted interfacial side reactions. | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY, v.22, no.25, pp.12574 - 12581 | - |
dc.identifier.doi | 10.1039/c2jm16799a | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.scopusid | 2-s2.0-84862180735 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/6141 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84862180735 | - |
dc.identifier.wosid | 000304884000023 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | A novel ion-conductive protection skin based on polyimide gel polymer electrolyte: application to nanoscale coating layer of high voltage LiNi1/3Co1/3Mn1/3O2 cathode materials for lithium-ion batteries | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject.keywordPlus | LICO1/3NI1/3MN1/3O2 | - |
dc.subject.keywordPlus | BEHAVIORS | - |
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